Super Mario Kart
Sent in by Juice
There should be a special kart for Bowser and Donkey Kong Jr. You would
get it if you go through all the races with Bowser or Donkey Kong. The
kart would get you up to top speed instantly. And it would give you
better turning.
Sent in by Bit
There should be more kart drivers and more racetracks. Yet the course
races have a variable set of laps (Example: Rainbow Road should be 20
laps long, Mario Circuit 1 should be 5 laps, Ghost Valley 3 should have
6 laps). And all the characters have their own race tracks. And there should
be more drivers besides Mario's friends and enemies and should be called
Nintendo Kart Racing.